Adjustable end hose clamp



. 1945. J. Y. MORRIS 2,381,551

ADJUSTABLE END nosm CLAMP Filed Dec. 16, '1943 luvsnfok,

M John Harris,

Q7 Ma-4.1:...

Patented Aug. 7, 1945 Q I ADJUSTABLE END HOSE v JohnY. Morris, Columbus,Ind., assig nor to Verner 'Easprouse and Ada Sprouse, a copartnershipdoing business as V. E. Sprouse Company,

Columbus, Ind.

I Application December 16,1943, Serial No. 514,540

7 Claims.

'i'hisinvention relates to a hose clamp of that type wherein a bridgepiece is employed between and under draw up b olt ears to have thatbridge A primary object of"the invention isto-provide a detachable clampend for adjustable engagement with abutments on the trap end of theclamp proper in such mannerasfto control the position of that strap end.

The structure provides arr-extremely facile and section ,of, aystructureembodying the invention;

F ig. 2,-a viewin end elevation with part of'the handout away; U

' 3, a'view'in opposite end elevation and in partial section;

Fig. 4,- a view inplan on a reduced scale of v theblank for. forming themajor part of the clamm;

a d; r r

h a View, on" a reduced scale in section on; the line 6 6 in Fi 2, butwith a modified i form of adjustingclamp end; and Fig fL a viewinperspective of the modified form of clamp end.

YLikecharacters of reference indicate like parts thropghoutthe severalviews inthe drawing.

A -blank hip-the nature of a. relatively thin, flexiblemetal strap, asshown-in Fig. 4, is provided with a slot-l through one portion adjacentan end {having a bolt hole It punched therethrough, and is 7 rovidedwith a reduced width portion [2 in the nature of a tongue which willireely pass, through the slot II! when the blank is rolled into thatform as shown in Figs. 1-3. On the euterl tongue end is formed a pair oflugs I3 and ,l4 in the nature of hooks. These lu'gs are turnedaround tobe substantially-normal to the in blank of the adjustable clarnppiecein'tension, and wherein, the clamp makes in effect a completewraparound th hose.

therebetween "is increased to prevent sharply turned corners, Theend ofthe blank adjacent the bolt holel'l isfor'med into an'earggenerallydesignated by the numeral lli to'have' 'sidereinforcing flanges -l6"andI! struck frorn 'the blank; The blank thus formed has the tongue l 2inserted through the slot I ll with the blank'in a generally circularform and the ear I 5 extending outwardly. The lugs l3 and Mfwill'exten'd o'ut wardly through slot [0. The lugs f3'and141 Figs. 1, 4 and6*, are each provided with an un'der cut on that edgeremov'edfrom'theout'er' end of the strapl2 so as to,.f,orm in-area hooked Anadjustable clamp end, generally designatedby .the numeral 18, isfor'ined from abla'nk ar as;

which has a bolt hole adjacent one end and is provided with a'pair ofspaced apart'sl1ots" 2 l 22 toward the'other end, threef'such;pairsj'ofslots being "herein shown. The transverse "width of these slots 2il,l22exceeds the thickness ofith lugs 13 and M s jwe11astheir*lengthsfsoathat the lugs mayjl'bednserted. freelytherethroug'h when the clamp, end is in its final for'med "shape.

That endof the blank lathrough "Whichf the bolt hole 20, passes isformed into an'ear 23 with side reinforcing flanges 24 and 2 5respectively. In the form of the invention as shown Figs, 1-3, the blankI9 below the rear zsj s circularly formed to" fit around the' side j' of,the main" body of the clamp as above described; tohave the pair of'lugs I 3 and I4 selectively, Passed through any one'of the pairsoislots 21, 22', herein shownas the pair'adjacent'that end o'fthe blankre oved from the bolt hole end; Byreason'of the shape of the lugs,theclarnp endnia'y be pulled around to cause the ends of there s'pectiveslotsto engage under the lugs andhave the ears I5 and}; in itiallyspaced apart a distance so that, when f'a draw up bolt ,26 is passedthroughthe holesH and 20 in the respective ea'rs l5 and 23 to screwthreadedly pass throughanutfl; hereinshown' as abutting the outer sideof the'ear 23;, the ears l5 and 23 may be drawn one toward the other toreduce the efiective internal 'diamet er of'jthe clamp by reason of theclamp end engaging with the lugs l3 and M to pull'the'tongue' l2 cir'cumferentially around in theslot Hi. In this forth of the invention, thatpart ofthe tongue 12' is preferably'left in afiat condition between''the butturned-lugs I3and [4 in order that thejend of the tongue willnot tend to dig into theho'se when the clampiscompressib1y engagedaboutthe hose. This would particularly-be the case "in the smalldiarrietersof clamps, v d However, in the largerdiameters, the end" oftongue I2 adjacent the lugs l3 and M is not curved around into thecircumferential curvature required for the particular hose diameter butextends out tangentially from that curvature, as

best indicated in Fig. 6. Also the tongue between those lugs and backfor a short distance is arched tohave a concave face 30 from the underor outer side, as indicated in Fig. 3. Not .only does this archingprovide for a greaterradius of curvature between the tongues and thelugs-but it also stiflens that end of the tongue in respect tocircumferential bending. I

Referring to Figs. 6 and '7, the metal 28 appearing transversely betweenslots 21, ZZwis ldetormed to extendangularly outwardly to give in effecta polygonal shape to the clamp end therearound b tween the s ot hes ,ine ed g 43; h s ra h en at th on ue 2 is Weight 7' h onta t ainst t e iner ef th s me (W ile the respective lugs extend .on thro h the leasteach sid thereof to hook ov r the "strap en at h endsei the t By ear mhe me o lr en a low n t e end e; the tensi e 12 to be thus po oned, theen or th ongu 12 is effec ively Po iti ned m e v a when e away om thinte n l i ter lat of he slemesth lam itsd wn by he be t ,6, thetendency is to etiect an increasing gripping action a ut the r nd orthe. tongue. lz -andbetween it and. the Clamp end, 'lfhe aturalt m imWOUN- e for thiselamp end t travel i wardly toward the hose but thereissufiicient clearance provided dicularly presented lugs on the free endof said v tongue, outturned through said slot, and having engage withinsaid lug notches; an ear on said clam end initially spaced from saidband ear; and a bolt through both of said ears as means to pull theearstoward each other to reduce the diameter of the clamp; and said tongueend extending through said slot substantially tangential to thecurvature .of the inner face thereof, whereby tensioning of said tongueby travel of the clamp and around said band tends to pull inwardly thefree end of the clamp end under tendency of inward travel of said tongueend.

3i A hose clamp comprising a band wrapped around upon itself and having.a longitudinal slot therethrough; an ear outturne,d';from one end ofthe band; a tongue .formin 'th etherengi n rtion and entering said slotfrom the inner'sid of the band, whereby the inner face of the band maypresent substantially a true circumference of a circle a pair'off spacedapart lugs on'the free end of s id ton e, ou t ne thro gh said. sl ndhaving notches entering on the ends removed from said tongue end; aclamp end having a curvature to fit around said Wrapped band and havingat. least one pair ofslots, one spaced laterally from the other and ofsuff cient ler llgth to receive in h modifi d ar to p e nt any gou ingor cuttin of the hose. V 7 While I have herein shown and ,dESfiiibed' myinv t in the on particular (format is obvi us that structural variationsmay beiemplgyed with? out departing from the spirit .of the ill ntio andI therefore. .do not desire to .beQlimiiflQ 1 2 3 precise form beyondthe limitations as'may be hnposed by the iollowing claims. y

.1. A hose clamp vcomer sms a ibendwreh e around upon itself and havingafl engitudinal sl t therethrougjh; an ear putturned irorn neend of theha dre tong e a ming the-e he end port on end e terin s idslqt rom einner ie 9f the ba d, whe eby t e i n r ace of the hammer p es n ubstania ly a t ue .c r umfie e cem circle; a pair of laterally spacedapartperpen: dieularly presented lu s .Qn thence end o s i t n u u turnedthrough said slot, an hav n notch e terin on the ends'remor d v rom saidtongue end; a clampendhaving h. urvatnre to fit around aid wrap ed bandand h vingat least one pair of slots, one paeesi laterallv ir e other an-.of s fl cien l ng h t rec ive said lugs ther t ugh and have the endedges o said s ts engage within ,said lugn tehes; sneer on s id clampend initially spaced from said band ear; and a bolt .th u hhoth ofslaidearsla's m ans to pull the ears toward each .otherto reduce thedi;ameter of the clamp. I v

2. A hose clamp comprising a band wrapped r nd lin n its l and hav ng al engitudinal .s et th -t ug an ear .outturn'ed from oneeud of the band;a tongue formin member-end PQ I QI and enterin saidslot new he ide o theband whereby the inn r ra .e the arn ay present substantially ,a truecircumference of ,a i cle; a h of late ally spaced a a Perpensaid lugstherethrough and have the end edges of said slots engage within said lugnotches; anear on said'clamp end initially spaced from said band ear;and a bolt through both of said ears as means to pull the ears towardeach other to reduce the diameter of theclamp; saidtongue end beingarched transversely betweenysaid lugs to present an outer concave faceover the material of said clamp end intervening betweenlaterallyadjacent slots.

4.A hose clamp comprisin a'bandwrapped around upon itself and havinga'longitudi-nal slot therethrough; an ear putturned from one end of theband; a tongue formingth'e' other end portion and entering said slotfrom the innerside of the i band, whereby the inner face of theba-nd maypresent, substantially a true circumference of a circle; a pair ofspaced apart lugs on the free end of said'tongue, outturned through saidslot, and

having notches entering on the ends removed from said tongue end; aclamp endhaving a curvature to fit around said wrappedband and having atleast onepairof s1ots,one spaced laterally from the other andofsuflicien-t length to receive said lugs therethrough and have the endedges of said slots engage within said-lug notches; an ear on said clampend initially spaced from said band ear; and a bolt through 'bot-h'ofsaid ears as means to pull the ears toward each other to reduce thediameter of the clamp; said band being made of flexible material; andthe material of said clamp rend between adjacent slots being outwardlydeformed beyond the circumference of the outer face of the clamp end toprovide clearance space for said tongue end between the deformation andthe inner facegf said band through said slot.

5, A hose clamp comprising a band wrapped around upon itself and havinga longitudinal slot therethrough; an ear outturned from one end of theband; a tongue forming the other end portion and entering said slot fromthe inner side of the band, whereby the inner face of the band maypresent substantially atrue circumference of a circle; a pair of spacedapart lugs n the free end of said tongue, outturned through said slot,and having notches entering on the ends removed irom said tongue end; aclamp end having a curvature to fit around said wrapped band and havingat least one pair of slots, one spaced laterally from the other and ofsufficient length to receive saidlugs therethrough and have the endedges of said slots engage within said lug notches; an ear on said clampend initially spaced from said band ear; and a bolt through both of saidears as means to pull the ears toward each other to reduce the diameterof the clamp; said band being made of flexible material; and thematerial of said clamp end between adjacent slots being outwardlydeformed beyond the circumference of the outer face of the clamp end toprovide clearance space for said tongue end between the deformation andthe inner face of said band through said'slot; said lug notches beingadjacent said tongue end and formed to permit rocking of the lugsrelative to the engaged end edges of said slots.

6. Aho'se clamp comprising a band wrapped around upon itself and havinga longitudinal'slot therethrough;v an ear outturned from one end of theband; a tongue forming the other-end portion and entering said slot fromthe inner side of the band, whereby the inner'face of the band may bandbeing made of flexible material; and the material of said clamp endbetween adjacent slots being outwardly deformed beyond the circumferenceof the outer face of the clamp end to provide clearance space for saidtongue end between the deformation and the inner'face of said bandaround upon itself and having a longitudinal slot therethrough; an earoutturned from one end of the band; atongue forming the other endportion and entering said slot from the inner side of f the band wherebythe inner face of the band I may present substantially a truecircumference of and having notches enteringon the ends removed fromsaid tongue end; a clamp end having a present substantially a truecircumference of a circle; a pair of spaced apart lugs 0n the free endof said tongue, outturned through said slot; and having notches enteringon the ends removed from said tongue end; a clamp end having a curvatureto fit around said wrapped band and having at least one pair of slots,one spaced laterally from the other and of sufficient length to receiveaid' lugs. therethrough and have the end edges of said slots engagewithin saidlug notches; an ear on said clamp end initially spaced fromsaid band ear; and a bolt through both of said ears as means to pull theears toward each other to reduce the diameter of the clamp; saidcurvature tofit around said wrapped band and having at least one pair ofslots, one spaced 1at-- erally from the other and of sufficient lengthto receive said lugs therethrough and have the end edges of said slotsengage within said lug notches; an ear on said clamp end initiallyspaced from said band ear; and a bolt throughboth of said ears as meansto pull the ears toward each other to reduce the diameter of the clamp;said band being made of flexible material; and the material of saidclamp end between adjacent slots being outwardly deformed beyond thecircumference of the outer face of the clamp end to provide clearancespace for said tongue end between the de-.

formation and the inner face of said band through said slot; saidmaterial deformation consisting of a straight length of metal extendingcentrally from each circumferentially opposing side of said slots tomeet centrally and outwardly from the outer circumferential face of saidclamp end.

' JOHN Y. MORRIS.

